#include <stdio.h>
int main() {
char c;
while(scanf("%c",&c)!=EOF)
{
if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'||c=='U')
printf("Vowel\n");
else
printf("Consonant\n");
getchar();
}
return 0;
}

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